Metal-working machine.



H. M. HUNTER.

METAL WORKING MACHINE.

1,08L964. o' 1m Patented Dec. 23,1913.

4 SHEBTS"SHEET 1.

' HM. HUNTER.

METAL WORKING MACHINE.

IIIIIIIIIIIIIIIII EB.26. 1912A 1,081,964. Patented Dec. 23, 1913.

1 SSSSSSSSS EET 2.

@mi/Immo: mantoz s. MP T .i m 4m w en. .Y m. m H

' Patented 1160.123, 1913.

Hu 72 777 QZIS/Hozwgm H. M. HUNTER.

METAL WORKING MACHINE.

APPLICATION FILED PEB ze 1912 1,081,964.

H. M. HUNTER. METAL WORKING MACHINE., V APPLICATION FILED FEB.2G, 1912.

Patented Dec. 23, 1013 4 SHEETS-SHBBT 4.

f l l Unten sie ne, Artnr oratori,

HUGH MUNROE HUNTER, OF CLEVELAND, OHIO, AssrGN'ontuo THE NATIONAL-ACMEMANUFACTURING COMPANY, or GLEVELAND, OHIO, A Conroe-AT ION 0F oHIe.

IITAL-WORKING MACB'E.

rosanna.

Specification of Letters Patent.

Patented Dee. 23, 1913.

Application led February 26, 1912. 4Serial No; 679,811.

To all whom it may conce-rn Beit known that I,- l-lnen M. H Unfrnn, acitizen of the United States, residing at Cleveland in the countyy of'Cuyahoga and lState' of Ohio, have invented certain new and usefulimprovements in' Metal-lVox-king' Machines, of which the following is aspecification'.

` This invention' relatesto met-al working machines, andmoreparticuflarly'to that class thereofknovvn asimultipl'e spindlemachines, the object of the' invention being' to provide a multiplespindle machine having improved i Work forming means lby means of whichwhen angular stockis being formed `the chattering and 'vibration` of thetool! will loe largelyi overcome as Well as the extreme resistance toVthe' Working of the tool avoided, and by means oit' which improvement anincreased production of' from' thirty to' fifty per' cent, iis-obtainedwhether the stock be ,round or angular.

In thel drawings accompanying ahd *fornr` ing part of thisspecification, Figure- 1 is 'a perspective side view of a1 portion` of amultil plei spindle machine halvl-n'g this' improved forming mechanism;Fig. 2' is a `perspective side View of the opposite side of the machineillustrating more clearly the different form ing Operations on the samepiece of Work;` Fig. 3 is a perspective side view of the same side' ofthe machine as that shown in Fig. l, but illustra-ting one of theforming tool carri'ersl thrown upward and out of itsWor-k-in'gposi-tion; Fig. 4 is an end View of the turret end of the machinelooking from .right to left in Fig. l; Fig. is a 4diagraunnatic Viewillustrating the movement of one of the Similar characters of referenceindicate corresponding parts throughout the figures of thefdrawingi.

In machines of this general class, where the'fomiing tool makes a Widecut on a hexagon Or square bar there has" a'lWa-ys been considerablechattering and vibration, and therefore more or less trouble on accountot the extreme resistancev tothe forming tool while passing over thecorners of the stock. In Otherwords, during `the rotation of thcstock,

every time the tool comes into contact with meets with the heaviestresistance. Furthermore, When the tool starts intod the work it strikesthe corner first, asithis is the greatest diameter of the stock.Consequently, as the tool* in starting into the' work lirst engages thatpart of the stock having the' greatest diameter, and therefore one ofthe corners of the stock, it does not do any further work until itstrikes theV next corner during the rotation of the stock, and thiscauses the tool to chattenas' in effect the piece ot work is rotatingirregularly. By means of the present. improvement this chattering islargely eliminatxad, as I am able to perform the first two formingoperations by a shear-` ing cut. ln other words, by using a singleforming tool it is inrl'n'acticable tomake a shearing cut on' the stock,for the reason that the piece of workwouldbe left in that shape afterthe tool finished cutting, but in the present improvement, by havingthrcc forming tools! a shearing cut can be made in one direction by thelirst tool, a shearing cut in an oppositeA direction by' the secondforming tool, and the' third' tool forms the work into -the cylindricalsha-pe in which it is desired,

in which form it is usually necessary to leave the stock,I and the cutsin each easewill be smaller, so that such culs can be made faster andthe tendency to chatter practically eliminated lby reason of thisshearing cut over the corners or angles of the work. Furthermore,whether thc forming operations take' place upon angular formed stock orcylindrical stock thel output of the product is materially increased byperforming thcse forming operations in three steps, since by havingthree ditlerent positions in which to carry on the fmniing operationsthe time within which they are performed is reduced from thirty to fiftyper cent. 1in other words, although the forming work is performed inthree cnicrations in the presentimprovement, all of these operationsaredone in the time that would be necessary to properly cut the workwith a single tool'.

In other words, by dividing up' the opera-y tions the time that it takesfor the tool to make the longest operation on the piece is divided sothat the actual time of making that piece is reduced just that much. Inother Words, heretofore where the forming operation had to be performedwith a flat 20 provement- .35 turret by levers 8 operated by sui-tablecams o 9 so formed that it will make a'shearingcut,

55 sleeve, being held therein against longitud e upper end with a sleeve19 mounted on the.'

tool, and therefore hadY to go into the work slowly, especially whereangular pieces were beingcut, if it took a minute to make a forming cutwith. one such tool by dividing this 5 forming operation into` three,using` three 'forming tools, theforming work vcan bedone vin one-thirdthe time- If heretofore the formingoperation was performedwith two 4formin tools, by using threethe timeof l() doingiat work is cut, inhalf, since all of the' tools are operatingsimultaneously and'v at eachoperation'of the three tools a piece of work is being completely formed.j Furthermore, it is necessary that aforming-tool, vto form accuratelyand properly, should.v cut on the center, and thepresent improvedmechanism provides a machine in which this, result is practicallyobtained In the present -emb diment' of this.. iin-qv it comprises 'arotatable turret 2 carried by the casing 3, which turret isV .providedwlth a 'Series of work spindles 4, shown herein as four number, theturret and spindles being'res ectivelyindexedand rotated by some suitale means' not neces# saryY to be described herein. The base 5 upon whichthe turret is mounted also supports-'a slidingv toog carrier 6 shiftablebyy Vsuitable means toward and from the turret. gD'At each 'sideof the`turretis mounted a compound slide 7 adjustable toward and ffrom theturret in the manner usuallypro lvided for this purpose, and ,a part of'whic h is shiftable towardand from theaxis o'f'the carried by a cam-drumon-the cam shaft, not necessary` to be shown herein. In lthepresentinstance the compound slide at the left of the machine carries alforming tool while thel compound slide at the right of themachinecarries -a cuttingo tool `10 for cutting 'oi the work after theformingoperations are completed.

Connected with veach of the compound` slides inthe mannerfhereinafterdescribed is a swinging forming tool carrier 11',.and as each isaduplicate of the other a de scription of one thereof isdeemed suicient.

50 Mounted on the turret casing is a bracket 12 having a pair of sleevesor bearings 1,-3

and 14:v forthe reception of'short eccentrically formedshafts 1.5; that.islto say, each shaft is rotatably supported in its bea-'ring nal playand is provided with a short. portion -16 eccentrically located to thatpartv 17 thereof which projects into the bearing sleeve. Loosely mountedupon adjustable eo cone bearings carried by the eccentric portion ofeach of these shafts is a depending forming toolI carrier 11 constructedto receive a forming tool 18, and forthis pur-- eccentric portion 1,6"of the shaft, depending '.fromwhichsleeveis an arm 2O Carr ingy aU-shaped portion 21 for the reception v'of shaft.l The lower end of the,other arm 2,9

a pin 31- carried bythe forming tool carrier, -the construction of thebifurcated end being `such that this bell-crank` lever can move or link-is bifurcated it enables vthe forming tool carrier-onV separating suchlink from its .pin 31 and. detaching one end `of Ithe' more easily .thanif`the-lower end `is`pro vided with a slot. 'By s o constructing themachine that these'car'riers. may be thrown accessibilityvto the[mechanism adjacent to ofa turnbuckle 35 having a'right and left,ter-piece(v This -turnbuckle enables y the depth of the formin cuts tobe regulated:

nected to a projection on the-carrier, which is provided with' a series'of holes whereby the angular position of the turnbuckle may be changedif desired. Each of the carriers receptionof a handle 38 by ,means ofwhich,

in the manner hereinbefore described, itmay be swung iaway from thework. By* y'this ward and from the work and at the same time, owing"tothe eccentric vshafts which support themjthe tool carriers are raisedby fthe eccentric shaft the tool is caused to a straight 4line from thecircumference. of

pose the carrier isshown provided atits the-piece of work toward thecenter for lthe' distance which the tool is to cut. In other of thisbell-crank lever is bifurcated, as-at' v30, or 1t may be slotted forthereception of back and forwardon the pin of the carrier.v When thelowerend of the bell-crank' lever turnbuckle hereinafter described-ftebe thrown upward as shown inJFig. 3 much upward theuinsertion oftheforming--tools -1n, the carrier and in the compound slide'is.` very muchfacilitated aswell' as affording -the work spindles. Each-bf t-he toolcarriers- 1s connected to the compound slideby means.

` hand thread provided with a knurled cen` The inner iendv of 4teturnbuckle -is conconstruction it will -be.'observed that .as the lower'forming and cutting off tool' slides ,are moved toward and from thework theswinging tool carriers -are also swung tothe forming tool holder22, vwhich may be' pivotally secured, as'y at 27,` to a projection 28 ofthebracket carrying the eccentric' r is provided with a handle socket 37for the and lowered, but by reason of the fact that each .tool carrierisplinked in'the manner` .hereinbefore described tothe crank carriedymove in such' manner as tocut on the lcenter of the workg' that istosay, itvw-ill cut inf thereof.

menace Words, by reason ofthe fact that the forming operations aredivided into three the tool does not have to penetrate the work morethan about onequarter of the diameter Consequently, by Isupporting thecarrier in the manner shown herein itwill during its cutting opera-tioncut on the center. y

From the foregoing it will be observed that by constructingy two of theforming tools so that each will make a shearing out the first formingcut will be made by that tool carried by the compound lslide shown atthe left of the turret yin Fig. 4 seas to cut the iwork in the. mannershown in Fig. 7. When this out has been completed the turret is rotatedor `indexed in the usual manner and the piece of work is rotated intoposition tojbe ,operated upon by the forming tool carried by theswinging carrier 11 at the leftof the turret, simultaneously with which,of course, the forming tool immediately below it is performing its workon a new piece of stock. The forming tool lcarried by the swingingcarrier at the left of the machine then makes a shearing cut similar tothat shown at the left of Fig. 8, after which the turret -is againrot-ated or indexed to carry this truncated piece of work into positionto be operated upon by the other swinging ,forming tool at the right offthe turret, at

which time, of course, the two previous forming tools are cutting ondifferent pieces of stock. For a large amount of work the stock, ofcourse, could notbe left in the condition shown in-Fig. 48, andtherefore the right hand swinging formingtool at this -timecuts the Workso as to leave it in the loperations of the tools of `the slidin T toolcarrier on the work are also completed. Of course, when round stock isbeing operated upon it is not necessary that the forming toolsl make ashearing out, but by the pres- `ent improvementthe stock may becompletely formed in much lesstime, as hereinbefore pointed out,whateverthe form of the stock may be, and when angular formed pieces arebeing Worked `it `is ypracticable `in the present improvement to makeshearingcuts, which thus very materially eliminate chatteringandvibration of the tools. From the foregoing it will thus be observed thatin the present improvement the time re-I quired to finish one piece ofwork, so far as the forming operations are concerned, is

4 equal only to the time required for one sin- I gle operation, and aseach single forming operation is necessarily much shorter than thatheretofore necessary where one tool is used it follows that the outputof the ma.

chine is very materially increased while' ever, to use only one of thesestay rods, and

this at that side of the machine where the heaviest forming operationstake place.

In practice the sleeves 13 and 14 of the bracket or housing l2 will beprovided with adjustable cone bearings substantially similar yto thoseshown in dotted lines in Fig. 1 at the .forward end of the shaft l5 forsupporting the carrier 11 for taking up all play or wear of the parts.

In the diagrammatic view, Fig. 5, illustrating the movement of theforming tool, the perpendicular dotted lines I) illustrate the swingingmovement of the carrier 1l, while tlie horizontal dotted line cillustra'tes the movement of the cutting tool cutting on the center, andthe curved dotted line a illustrates the movement the cutting tool wouldtake if there was no rising and falling ii-ioveinent ofthe swingingcarrier. The dotted lines .e show the rising and falling or oscillatorymovement of the crank arm 23 of the eccentric shaft.

I claim as my invention:

1. In a multiple spindle machine,'the coinbination of a rotatablysupportedturret carrying a plurality of spindles for the work, aplurality of side tool supports located at the saine side of themachine, means for pivotally supporting one of said supports, said pivotbeing eccentrically journaled, means for swinging said pivoted toolsupport and for turning said pivot in its" eccentric bearing whereby thetool will move approximately in a straight line, and means for simultaneously operating the other tool support whereby the toolsmayoperate siinultaneously upon the work and. successively yupon the samepiece of work. u 2. In a multiple spindle machine, the conibination of arotatably supported turret carrying a plurality of spindles for thework, a plurality of side tool supports, means for pivotallyA supportingvone of said supports, said `pivot being eccentrieally journaled,`ineans'tor swinging said pivoted tool suplport and for .tunning saidpivot in its eccentric bearing whereby the tool will move approximately,.in a straight line, and means for operating the other tool supportwliere by :the toolscarried thereby will act succes sively upon theWork.

In a multiple spindle machine, the combination of a rotatably supportedturret carrying a plurality ont spindles for the work,`

a plurality of side'tool supports supported independently of each other,one for sliding movement,"means for pivotally supporting 5, the othersupport above said sliding sidetool` support, ,said pivot beingeccentrlcally jour'- naled, means for swinging said pivoted tool'support and for turning said pivot' its eccentric bearing whereby thetool- .will :w move approximately in a straight' line, and

means for operating said sliding toolsupport in unisonwith said'swingingtool sup-- port whereby the toolscarried thereby mayoperatesimultaneously upon the work and la successively upon the-samepiece of work,

` 4. In a vmultiple spindle machine,'th combination of a rotatablysupported turret carrying a plurality-of' 'spindles for the Work alplurality of side tool supportssupported ga-independently ofleach otherbut connected together, Vone supported for sliding movement, means forpivotallysupporting the other support above said slidln side tool isupport, said pivot being ecraentrlcally` jourl 2a naled, meansforswinging said -pivoted tool .support and for turning said pivot inits-eccentric vbea-ring whereby the tool will moveapproirimately. in -astraight line, and means for operating said slidin tool support ,in

an unison with said swinging tool support whereby the tools carriedthereby may opy erate simultaneously upon-the work and successively uponthe same piece of work.-

. 5. In a multiple spindle machine, the coma5 bination of. arotatablysupported 4turret carrying a plurality'of spindles for the `work, av

plurality ofl side tool supports, and lmeans for vactuating all of saidsupports whereby the tools carried thereby maysimultaneously4 n@ operateupon the rwork andl successively upon the same piece of work, eachofsaid tool lsupports carrying aforming tool, each constructed to partlyor irregularly out the work whereby the complete forming opera- I. 45tion` on each piece is effected only by' allot` the tools. but' invmaterially' less time than 'when lthe work vis formed by asingletool land with-less vibration and chattering when t@ their cutting edgeslocated dierently relatively to each other and to t-he line 'ofmovement, whereby one toolwill make a out different from that of thepreceding tool.

7 In a multiple spindle machine, the com- 465 bination of a rotatablvsupported turret car- -operating said tools.

- and means `for aesinet '.rying a plurality of spindles for thework, a

series of three `forming tool supports carrying topls operativesimultaneously upon the work `and successively' upon the same piece ofwork' and each eifec'tive, to perform a third of the forming operationupon the work whereby the complete forming of a piece of work takesplace .during the form! ing operation of each tool, and means for 8.` Ina multiple spindle machine, the-combinationv of-a rotatably supported'turret carrying a4 plurality of spindles `for the'n work, a series offorming tool supports carrying tools and comprisinga pair of slidingtool 'supports and a pair of swinging tooll supports, meansvfore'ccentrically supporting each 'of saidV swinging supports, and meansfor actuating said'sliding tool supportsandsaid eccentric supportingmeans, whereby the toolscairied thereby may simultaneously operate uponthe `work and successively upon the same pieceof Work.

- 9'. In a multiple spindle machine, the com! bination of .a rotatablysupported turretcarrying a plurality of spindles for the work, a seriesofv forming .tool'supports carrying' tools and comprising a pair ofsliding tool supports and'a pair of eccentrically supported swingingtool supports, and means foractuatingall of said supports' in unisonwhereby .the tools carried'thereby ymay simultaneously operate' upontliework and successively upon the same piece'of work,

each of said tool supports being independently supported a pair thereofat each'side fof .the work and each vpair connected togather -formovementin unison.-

. 10. In a multiple spindle machine, the combination of a rotatablysupported turret carrying a plurality of spindles Afoin thework,` a sidetoolsupport movable toward and from the Work, a vswinging 'side toolsupportl located abdve said side tool support and movable therewithtoward Vand from the Work so that vthe tools carried' by said toolsupports may v simultaneously operate upon the work and vsuccessivelyupon the same piece'of work,fmeans" for eccentrically supporting saidswinging side tool support,"and

means for actuating 'said means.

11. In a'.v multiple spindle machine, the I combination of a Irotatablysupported turret carrying a plurality of spindles for the work, aswinging side `tool support movable toward and romthe work; means forswingingsaidl side tool support, and means for raislng and .loweringsaid side tool support during its swinging movement. j

12. In Ia multiple spindle machine, the kcombination of arotatablysupported turret carrying a plurality of spindles `for the work, aslidin side tooll support movable toward and from the work', a Aswingingside tool support located above and connected with said side toolsupport and movable therewith toward and from the work so that the toolscarried by said tool supports may simultaneously operate upon the woi'kand successively upon the same piece of work, and means for swinging andfor raising and lowering said swinging side tool support during itsswinging movement.

13. In a\ multiple spindle machine, the combination ofa rotatablysupported turret 'f carrying a plurality of spindles for the work, asliding side tool, support movable towai and fromthe work, a swingingside tool support connected with said side tool support land movabletherewith towardand from the work so that the tools carried by said toolAsupports may simultaneously operate upon the work and successively uponthe same piece of work, and means for giving the swinging side toolsupport a rising and falling. movement during its swinging movement. i T

14. In a multiple spindle machine, the combination of a rotatablysupported turret carrying- Aa plurality of spindles for the work, a pairof opposed side tool supports movable towardfand from thework, a pair ofswinging side tool supports located above said opposed side toolsupports and connected` and movable therewith towardand from the work sothat the tools carried by said.

swinging movement.

.' eccentrically formed shafts, a swinginor side toolsupport carried byeach of said shafts,

15. In a multiple spindle machine, the combinatioirof a rotatablysupported turret carrying a plurality of spindles for the work, a pairof opposed sliding side tool supports movable toward and from the work,and a pair of eccentrically supported and swinging side tool supportslocated above said opposed side tool supports and connected and movabletherewith toward and from the`work sol may simultaneously operate uponthe work and successively upon the same piece'of work. i l

16. In a multiple spindle machine, the combination of a rotatablysupported turret carrying a plurality of spindles for the work, a pairof opposed sliding side tool supports movable toward and from the work,a fixed bracket carrying a pair of a linkage connection between e'ach ofsaid shafts and each of said swinging side tool supports, said linkageconnection being also pivotally supported by a'fiXed part of. the

machine, and means connecting each swing` i'ng side tool'support with asliding side tool support whereby they will move in unison so that thetools carried thereby may simultaneously operate upon the work andsuccessively upon the saine piece of work.

17. In a multiple spindle machine, the combination of a rotatablysupported turret carrying a plurality of spindles for the work, ,a pairof opposed sliding side tool supports movable toward and from the work,a fixed bracket carrying a pair of eccentr-ically' formed shafts, aswinging side tool support carried by each of said shafts, a linkageconnection between each of said shafts and each of lsaid `swinging sidetool supports, said linkage connection being also pivotally su ported bya fixed part of the machine', an n each swinging side tool support witha sliding side tool `support whereby they will move in unison so thatthe tools carried thereby may simultaneously operate upon the work andsuccessively upon the same piece of work.

18. In a multiple spindle machine, the combination of a rotatablysupported turret carrying a plurality of spindles for the work, a. pairof opposed sliding side tool supports movable toward and from the work,a fixedI bracket carrying a pair of eccentrically formed shafts, aswinging .side tool support carried by each of said shafts, a'linkagcconnection between each of said, shafts and each of said swinging sidetool supports, said linkage connection being also pivotally supported bya fixed part of the machine, and means adjustably and de- 'tachablyconnecting cach swinging side tool supportwith a sliding side toolsupport whereby they will move in unison so that the tools carriedthereby may simultaneously operate upon the work and successively uponthe same piece of work.

19. In a multiple spindle machine, .the combination of a rotatablysupported turret carrying a plurality oi spindles for the work, asliding side tool support movable toward and from the work, a fittedbracket, an eccentrically formed shaft carried by the i bracket, aswinging side tool, support suspended from said shaft, a linkageconnection between said shaft andthe swinging side tool support and alsohaving a fixed pivotalfconnection, and means connecting said swinging-side tool support with the sliding tool support whereby they will movein unisonto permit the tools carried thereby to simultaneously operateupon the work and successively upon the same piece of work.

20. In a multiple spindle machine, the combination of a rotatablysupported turret carrying a plurality of spindlesA for the work, asliding side tool support movable toward and from the work, a fixedbracket, an eccentrically formed shaft vcarried by the bracket, aswinging side tool support sus means adjustably connecting i pendedtroni said shaft, alinlage nonnen-[ tion between'- said shaft fandthesvvingi1lg`V 'side 1tool Asupport and valso hai'liiignl fixed; pivotal.connection7 and adjustableiineans connecting said.l swinging side toolsupport with the sliding tool support whereby they Willmove i'n.unisonto Apermit the tOQ1spai rie'd thereby to simultaneously operateupon the Work.. and successively upon the same piece of Work. y

' combination of a rotatably supported turret;

bracket, ,asWi oorrying ouzplnnality of.snind1os..for..the Work, asliding. side tool4 support movable .to- Word. and from thonyorlnfafixed bracket, an i eooentrically .formed .shaft Icarried bythe naodo.tool Support pondod from said shaft, @linkage -oonneotion betyyeentsaid*.shaftanduthe `Savin' .ing side tool. sllPPOlt and also having Aa Xedpivotalconnection, and adjustable and/de- I 'tachable .Ineanslconnecting! said. Swinging Sido tool lsummit with.. the .sliding toolSup'- port Wherebythey .will move. in unison to permit'. the toolscarried .thereby .t6 simultaneouslyoperate upon thelwork. and succesr'sivelypupon the same piece of Work and- WorinI 23. In a whereby also theswinging side tool support may b'ethnow'naway from the Work to permitaocess thereto. V 22. ln multiple spindle machine, the combination ofa rotatably supported turret carrying a; .plurality ofspindles for theWorlaV sliding too-lsupport movable to Wardand from.;the work, axed-bracket, an eccentrigally formedshaft rotatablycar ried thereby, aswinging-side tool support loosely mounted on; vsaid shaft, a crank armsecured to said shaft, linkage connection betyveen said. crank arm and.said swinging side tool supporti and .having a iiXed-piv- 'otalconnection, andan; adjustable oonnec.-

tion between said swinging and sliding tool suppor-ts vvhereliiyv thetools carried 'theijeby may simultaneously operate' upon the Work andsuccessively upon ythe vsame-piece off multiple spindle machine, thecombination of a rotatably supported turret carrying a 'plurality ofspindles for the' Work, a pair of side tool supports movable toward andfrom the Work.simultaneously,t so that the tools carried by said toolsupports may operate simultaneously upon the` y Work anclsuccessivelyupon the'same-piece of work, and-a tool cariedbyeach oi1' sa id toolsupports, the cutting edge of one being at an angle tothe lineofmov'ement While the Cutting edgey of the followingl tool is'oppositely inclined, whereby the tools are adapted .to make shearingcuts. y

24.v In a multiple spindle machine, .the 'combi-nation of arotatably-supported turret carlryinga. plinalityl of spindles -for the'Work, a side tool support movable toward port located labovesaid rst.side toolsupf port .andffconnected' movable thereyv ith toward andfrnomwthe Work. so that the tools oarroduby Snd tool .Supporto-may.operino upon the work land..A Snooesslvoly nponiho piece of. .Wanneefor actuating vio said Supports Simultaneously, and tools onrriool bySeid. tooloiipporto oooh odnptodto make, a out different f rom'that oftheyp-re- .oedingtool .and whereby... @non will .partly or.i.rrognl.r1yont .the Work. So that the oom: plete Aforming operation on each pieceis eiectegl in materially less timetlia'n when lessviblfationfandchattering when operatV ina upon Qrrognlnnstook.

, 25. a mult1ple. spindle the oorrying nf. plurality.V ot Spindloafoithe wor z, 'a side tool supportmovabletoward and fromthe .Workz yanotherside tol sup combination ot a rotatably. `supported turxet i lsa portlocated, abovesaid firstside tool sup? portand, connectedjand movabletherewith l towngrfl nndfroln. tho-.Work So that ohotoolo .earned by.Said tool. Supports. .may Simultaneone1y-3one1nenpon the WorknlndQSuCooSr Siyoly .upon tho Sanne nlooo of. vork., .and

tools oanro'd. byonld toolisupportetheout? ting' edgeo-one. being at anangleto the lino. of movement .iyhlofftllo .Cutting odgeoffthefollowinatool..1S opposnoy inclined, whereby each is adapted t'omake a shearing out, and whereby each tool will partly or`,irrogulnrlyub the Work' no 'that' the Coin" plete formingI operationoneach piece of Work is eil"eeted in mateiially. less vtime than when the..Work informed .lo-.. o .Single tool and with lessyibrationhandbattering,when operating nponrrolenlar'nook- 2.6,. Inmultiple. indie nahme a@ .Combination .oft-alfabeto 1y. .onporto'0l.telnetoarrying .a plnnnltyf. of Sain Wonka' n Pom Q..S1 e;t991

town-'rd one ifrom! ine-.nor

. ,andoonnootod toaotlioi .so thatgtio monoamine by anni tool.)onioporfe moy' Simultaneously operateneonthevork;and..asuoooneiyelynnnen.tho i toolscarrie'd bysaidtool,supportsmayimultaneou'sly operate upon t successivelyuponthesame piece of Work, one pair lof-.Sad .tool-.Supports Carryingtools, the. cutting edge otono being Yat .an

anglo .to the lnoo'f. moyoniont While .the ont-- ting edgeoftheifollotying tool is-:oppositelyl inclined, whereby each is adaptedto make a shearing cut.

28. In a multiple spindle machine, the combination of a rotatablysupported turret carrying a plurality of spindles for the work, a fixedbracket, an eccentrially'` formed shaft carried by the bracket, aswinging side tool support suspended from said shaft, a linkageconnection between said shaft and the swinging side tool support andalso having a fixed pivotal connection,

.and means for imparting a swinging moveand for swinging said toolsupport toward.

and from the work.

30. In a machine of the class described, the combination of a fixedbracket, an eccentrically supported shaft carried by the bracket, aswinging side tool support suspended from said shaft, a linkageconnect-ion between said shaft and the swinging side tool support andalso having a fixed pivotal connection, and means for actuating saidtool'support.

31. In a multiple spindle machine, the combination of a rotatablysupported turret carrying a plurality of spindles 4for the work, a`fixed bracket supported adjacent to said turret, an eccentricallyformed shaft carried bythe bracket, a swinging side tool supportsuspended frbm said shaft, a linkage connection between said shaft andthe swinging side tool support and also having a fixed pivotalconnection, andA means for actuating said tool suppor 32. In a multiples indle machine, the combination of a rotatalbly supported turretcarrying a plurality of spindles for the work, a side tool supportmovable toward and 'from the work, an overhanging swinging side toolsupport, means for giving said swinging tool support a rising andfalling movement during its swinglng movement,

-tion on eachpie'ce is effected only and means for actuating both ofsaid tool supports.

In a multiple spindle machine, the combination of a rotatably supportedturret carrying a plurality of spindles for the work, a side toolsupport movable toward and from the work', a swinging side tool supportoverhanging said first side tool support, means for glving saidswinging` side tool support a rising and falling movement during itsswinging movement, and' means for actuating both of said tool supports,each of said tool supports carrying a tool adaptedto make a cut one in adirection opposite to that of the other.

34. In a machineof the class described, the combination of supportingmeans, a side tool su port supported thereby for rising and fallingmovement and for swinging movement during its' rising and falling'movement, and mechanism for swinging said side tool support and forimparting a rising and falling movement during its swinging movement.

35. .In a multiple spindle machine, the combination of a rotatablysupported turret carrying a pluralit of spindles for the work, two setsof slde tool sup orts, each set.k comprising a pair of side toosupports, and means for actuating all of said supports in unison wherebythetools carried thereby may simultaneously operate upon lthe work andsuccessively upon the same piece of work, three of said side toolsupports carrying forming tools each constructed to partly orirregularly cut, the work whereby the complete forming gperaia l of thetools but in materially less ltimethan when the work is formed b asingle tool and With less vibration and ciiattering when operating uponirregular stock.

Signed at Cleveland, in the county of Cuyahoga and State of Ohio, this21st day of February, 1912.

HUGH MUNROE` HUNTER.

Witnesses J. L. Momussay, CLoYD HAUK.

